PIC18F25K83 I2C2 registers

The 19 registers of I2C2 (I²C 2), from 0x3D54, with their reset value and every field. The PIC18F25K83 has 906 registers in 55 peripherals, one page each.

I2C2 I²C 2

I2C2RXBI2C RECEIVE BUFFER REGISTER

Address: 0x3D54
Reset: x (not fixed at power-on)
Access: read only

7RXB7
6RXB6
5RXB5
4RXB4
3RXB3
2RXB2
1RXB1
0RXB0

1 field

Field	Bits	What it does
RXB	7:0

I2C2TXBI2C TRANSMIT BUFFER REGISTER

Address: 0x3D55
Reset: x (not fixed at power-on)
Access: write only

7TXB7
6TXB6
5TXB5
4TXB4
3TXB3
2TXB2
1TXB1
0TXB0

1 field

Field	Bits	What it does
TXB	7:0

I2C2CNTI2C COUNT REGISTER

Address: 0x3D56
Reset: x (not fixed at power-on)
Access: read/write

7CNT7
6CNT6
5CNT5
4CNT4
3CNT3
2CNT2
1CNT1
0CNT0

1 field

Field	Bits	What it does
CNT	7:0

I2C2ADB0I2C ADDRESS BUFFER REGISTER 0

Address: 0x3D57
Reset: x (not fixed at power-on)
Access: read/write

7ADB7
6ADB6
5ADB5
4ADB4
3ADB3
2ADB2
1ADB1
0ADB0

1 field

Field	Bits	What it does
ADB	7:0

I2C2ADB1I2C ADDRESS BUFFER REGISTER 1

Address: 0x3D58
Reset: x (not fixed at power-on)
Access: read/write

7ADB7
6ADB6
5ADB5
4ADB4
3ADB3
2ADB2
1ADB1
0ADB0

1 field

Field	Bits	What it does
ADB	7:0

I2C2ADR0I2C ADDRESS REGISTER 0

Address: 0x3D59
Reset: 0xFF
Access: read/write

7ADR7
6ADR6
5ADR5
4ADR4
3ADR3
2ADR2
1ADR1
0ADR0

1 field

Field	Bits	What it does
ADR	7:0

I2C2ADR1I2C ADDRESS REGISTER 1

Address: 0x3D5A
Reset: 0xFE
Access: read/write

7ADR6
6ADR5
5ADR4
4ADR3
3ADR2
2ADR1
1ADR0
0–

1 field

Field	Bits	What it does
ADR	7:1

I2C2ADR2I2C ADDRESS REGISTER 2

Address: 0x3D5B
Reset: 0xFF
Access: read/write

7ADR7
6ADR6
5ADR5
4ADR4
3ADR3
2ADR2
1ADR1
0ADR0

1 field

Field	Bits	What it does
ADR	7:0

I2C2ADR3I2C ADDRESS REGISTER 3

Address: 0x3D5C
Reset: 0xFE
Access: read/write

7ADR6
6ADR5
5ADR4
4ADR3
3ADR2
2ADR1
1ADR0
0–

1 field

Field	Bits	What it does
ADR	7:1

I2C2CON0I2C CONTROL REGISTER 0

Address: 0x3D5D
Reset: 0x00
Access: read/write

7EN
6RSEN
5S
4CSTR
3MDR
2MODE2
1MODE1
0MODE0

6 fields

Field	Bits	What it does
EN	7
RSEN	6
S	5
CSTR	4
MDR	3
MODE	2:0

I2C2CON1I2C CONTROL REGISTER 1

Address: 0x3D5E
Reset: 0x00
Access: read/write

7ACKCNT
6ACKDT
5ACKSTAT
4ACKT
3–
2RXO
1TXU
0CSD

7 fields

Field	Bits	What it does
ACKCNT	7
ACKDT	6
ACKSTAT	5
ACKT	4
RXO	2
TXU	1
CSD	0

I2C2CON2I2C CONTROL REGISTER 2

Address: 0x3D5F
Reset: 0x00
Access: read/write

7ACNT
6GCEN
5FME
4ABD
3SDAHT1
2SDAHT0
1BFRET1
0BFRET0

6 fields

Field	Bits	What it does
ACNT	7
GCEN	6
FME	5
ABD	4
SDAHT	3:2
BFRET	1:0

I2C2ERRI2C ERROR REGISTER

Address: 0x3D60
Reset: 0x00
Access: read/write

7–
6BTOIF
5BCLIF
4NACKIF
3–
2BTOIE
1BCLIE
0NACKIE

6 fields

Field	Bits	What it does
BTOIF	6
BCLIF	5
NACKIF	4
BTOIE	2
BCLIE	1
NACKIE	0

I2C2STAT0I2C STATUS REGISTER 0

Address: 0x3D61
Reset: 0x00
Access: read only

7BFRE
6SMA
5MMA
4R
3D
2–
1–
0–

5 fields

Field	Bits	What it does
BFRE	7
SMA	6
MMA	5
R	4	Read/Write Information bit
D	3	Data/Address bit

I2C2STAT1I2C STATUS REGISTER 1

Address: 0x3D62
Reset: 0x20
Access: read/write

7TXWE
6–
5TXBE
4–
3RXRE
2CLRBF
1–
0RXBF

5 fields

Field	Bits	What it does
TXWE	7
TXBE	5
RXRE	3
CLRBF	2
RXBF	0

I2C2PIRI2C PERIPHERAL INTERRUPT FLAG REGISTER

Address: 0x3D63
Reset: 0x00
Access: read/write

7CNTIF
6ACKTIF
5–
4WRIF
3ADRIF
2PCIF
1RSCIF
0SCIF

7 fields

Field	Bits	What it does
CNTIF	7
ACKTIF	6
WRIF	4
ADRIF	3
PCIF	2
RSCIF	1
SCIF	0

I2C2PIEI2C PERIPHERAL INTERRUPT ENABLE REGISTER

Address: 0x3D64
Reset: 0x00
Access: read/write

7CNTIE
6ACKTIE
5–
4WRIE
3ADRIE
2PCIE
1RSCIE
0SCIE

7 fields

Field	Bits	What it does
CNTIE	7
ACKTIE	6
WRIE	4
ADRIE	3
PCIE	2
RSCIE	1
SCIE	0

I2C2CLKI2C CLOCK SELECTION REGISTER

Address: 0x3D65
Reset: 0x00
Access: read/write

7–
6–
5–
4–
3CLK3
2CLK2
1CLK1
0CLK0

1 field

Field	Bits	What it does
CLK	3:0

I2C2BTOI2C BUS TIME OUT SELECTION REGISTER

Address: 0x3D66
Reset: 0x00
Access: read/write

7–
6–
5–
4–
3–
2BTO2
1BTO1
0BTO0

1 field

Field	Bits	What it does
BTO	2:0